chore: update repository branching video

Author: filipelima18

packages/projects-docs/pages/learn/repositories/overview.mdx

@@ -24,6 +24,6 @@ This feature is specially useful when you’re working on a branch and need to q
 
 When you press `Create Branch`, we automatically create a new branch and set up a development environment with running dev servers within a few seconds by cloning the VM you branch from. You can read more about how this works in our [blog](https://codesandbox.io/blog/how-we-clone-a-running-vm-in-2-seconds).
 
-<Video src="../../introduction-gitflow.mp4" />
+<Video src="../../repo-branching.mp4" />
 
 If you are looking at someone’s PR and want to quickly test a suggestion, simply click `Create Branch`, write the code and share a link to your changes. If you’re happy with the changes, merge that into the existing PR. All of this in under a minute.